I send my invention to Davison design and developments in the U.S about three years ago and have spent about 22.000 dollars Australian with their company, I have asked them (after falling across a scam artical on them on google), for a copy of the Agreement between their company and the companies that have prosented my invention to so that I know i have been protected against anyone taking up my invention and useing it as there own. They said they could not give me such an agreement and that my provisional paton was enough. well thats all fine... read full review »